Methanedisulphonic acid Structure

Methanedisulphonic acid

Chemical Properties

Melting point 96-100°
Boiling point 263℃ at 101.3kPa
Density  1.6517 (rough estimate)
vapor pressure  0Pa at 25℃
refractive index  1.5300 (estimate)
storage temp.  Hygroscopic, -20°C Freezer, Under inert atmosphere
solubility  DMSO (Sparingly, Heated), Methanol (Slightly)
form  Solid
pka -0.71±0.50(Predicted)
color  White to Off-White
PH -0.96 at 23.9℃ and 1g/L
Water Solubility  2458g/L(25 ºC)
Stability Hygroscopic
LogP -1.49 at 25℃ and pH1
Dissociation constant -0.17 at 25℃
FDA UNII 55N1VUX48W
EPA Substance Registry System Methanedisulfonic acid (503-40-2)

Safety

Symbol(GHS) GHS hazard pictograms
Signal wordDanger
Hazard statements H314
Precautionary statements P260-P264-P280-P301+P330+P331-P303+P361+P353-P363-P304+P340-P310-P321-P305+P351+P338-P405-P501
TSCA  TSCA listed

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